How to add Known Traveler number to boarding pass after checking in?

If you don't find out about the missing PreCheck designation until you're at the airport, take your boarding pass back to the airline check-in counter and ask them to add your KTN to your itinerary — even if you think it's not worth the trouble at that point.



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If you're eligible for TSA PreCheck, your boarding pass will show TSA PreCheck. If you add your KTN after checking in, you'll need to get a new boarding pass.

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If you still do not have a TSA PreCheck indicator on your boarding pass, please call the TSA Contact Center at (866) 289-9673, submit an online form, or contact us at @AskTSA on Twitter and Facebook Messenger.

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You can also update existing reservations with your TSA PreCheck number. Go to Edit Traveler Information in the Manage Reservations section on the website, at an airport kiosk or in the United app.

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Travelers who are eligible will be able to find the notification indicator “TSA PRE” on their boarding pass. If you're eligible for TSA PreCheck, the indicator will appear on boarding passes throughout your itinerary, regardless of whether pre-screening lanes are available at your departure airport(s).

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TSA PreCheck verifies which passengers are present the lowest risk to flight security, so these passengers can pass through security checkpoints without the need to remove shoes, belts, or jackets from their person or laptops and liquids from their bags.

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If you are unclear why you are not receiving the TSA PreCheck® indicator on your boarding pass, first check that your membership has not expired by looking up your KTN (Known Traveler Number) here. If your KTN is still active, confirm with your airline that your KTN, name, and date of birth are accurate.

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Yes, other members of your group can usually go through TSA PreCheck if you have it. However, each person must meet the requirements and be approved for PreCheck separately. To do this, they must complete an enrollment process with the Transportation Security Administration.

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To add PreCheck to Delta, after your PreCheck application has been approved, log in to your Delta SkyMiles account to update your profile. The TSA PreCheck/Known Traveler ID field can be found under Personal Details.

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In most cases, you will only need to go to check-in when you have checked-in online if you need to drop off an item of hold baggage. Please ensure that you are aware of the hand baggage requirements for your specific airline before you travel.

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If you're traveling with just a carry-on bag, you can head to the security check as soon as you arrive at the airport, rather than making a first stop at the check-in desk, since you already have your printed boarding pass, or, better yet, you e-ticket.

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Do seniors automatically get PreCheck? No. Anyone who wants to receive PreCheck needs to apply. However, TSA does provide people who are 75 years old or older access to an expedited screening process in the regular screening lines: You can keep your light jacket and shoes on.

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Are mobile boarding passes available for multi-passenger reservations? In the past, printing was a requirement for mobile boarding passes when there were more than one person on an itinerary. Today you can get all of those passes together digitally when you check-in. Hooray!

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